cim2pp: extracted getting default classes, added generic setting datatypes from CGMES XMI schema

[mrifraunhofer]

…types from CGMES XMI schema

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (4767992) 79.53% compared to head (e611f79) 79.65%.

Files	Patch %	Lines
pandapower/converter/cim/cim2pp/from_cim.py	64.70%	6 Missing ⚠️
pandapower/converter/cim/cim_classes.py	92.85%	1 Missing ⚠️
pandapower/converter/cim/cim_tools.py	92.30%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2172      +/-   ##
===========================================
+ Coverage    79.53%   79.65%   +0.11%     
===========================================
  Files          255      255              
  Lines        27807    27793      -14     
===========================================
+ Hits         22117    22139      +22     
+ Misses        5690     5654      -36     

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